The term momentum (or hot hand) is widely used by researchers from various disciplines
when addressing streakiness. Indeed, stock prices, presidential approval ratings, students' …

The literature on momentum (hot hand) is broad and diverse, and is addressed in a range of
fields, including sports, marketing, finance, politics, and even warfare. Yet this term is readily …

Despite the prevalence of the momentum concept, the literature is still divided on whether
psychological momentum actually exists. We aimed to detect psychological momentum in …

The belief in momentum and the hot hand has often been attributed to misperception and
biased judgment. Here we review the major theoretical and empirical advances in the …

We investigate if, and why, an initial success can trigger a string of successes. Using random
variations in success in a real‐effort laboratory experiment, we cleanly identify the causal …

In dynamic contests, strategic momentum and psychological momentum potentially coexist,
which makes it difficult to distinguish between the two. We employ the setting of professional …

We conduct an experimental analysis of a best-of-three Tullock contest. Intermediate prizes
lead to higher efforts, while increasing the role of luck (as opposed to effort) leads to lower …

Whether trying to win Presidential primaries, trading stocks, or playing sports, performance-
enhancing effects of psychological momentum (PM) are widely accepted. But, does initial …

We consider two-stage tournaments with different information structures: Either competitors
observe each others' first-stage effort before entering the second stage or not. In laboratory …

We conduct an experimental analysis of a best-of-three Tullock contest. Intermediate prizes
lead to higher efforts, while increasing the role of luck (as opposed to effort) leads to lower …